ML20042F759

Application for Amends to Licenses DPR-77 & DPR-79, Consisting of Tech Spec Change 90-13,deleting Required Surveillance on cold-leg Accumulator Water Level & Pressure Instruments

ML20042F759
Person / Time
Site:	Sequoyah
Issue date:	05/04/1990
From:	Michael Ray TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20042F760	List: ML20042F759 ML20042F763
References
TAC-74151, TAC-74152, NUDOCS 9005090356
Download: ML20042F759 (2)

Text

4 f . _- TENNESSEE VALLEY AUTHORITY CH ATTANOOG A. TENNESSEE 37401 SN 1578 Lookout Place-MAY0t1990 4 o

TVA-SQN-TS-90-13 10 CFR 50.90-U.S. Nuclear Regulatory Commiss. ion ATTN: Document Control Desk-Washington. D.C. 20555

-Gentlemen:

,In the Matter of )- Docket Nos. 50-327 Tennessee' Valley Authority ) 50-328 SEQUOYAH NUCLEAR PLANT (SQN) - TECHNICAL SPECIFICATION (TS) CHANGE 90 COLD-LEG ACCUMULATOR INSTRUMENTATION SURVEILLANCE

Reference:

NRC letter to TVA dated August 11, 1989, " Emergency Amendments for Inoperable Cold Leg Injection Accumulator Level Instrumentation (TAC 74151/74152) (TS 89-37) - Sequoyah Nuclear Plant, Units 1 and 2" In accordance with 10 CFR 50.90, we are enclosing a requested amendment to Liconses DPR-77 and DPR-79 to change the TSs of SQN~Unlts 1'and 2. The proposed change deletes the required surveillance on'the cold-leg accumulator water level and pressure instruments. This change is being requested to provide a permanent resolution to the issuance of a temporary change to the '

SQN 15 as documented in the reference. letter.

The proposed TS change is identified in Enclosure.1. The justification for the proposed TS change is provided in Enclosure 2. A proposed-determination of no significant hazards consideration performed pursuant to.10 CFR 50.92 is 1

provided in Enclosure 3.

As a separate issue, TVA is taking this opportunity to provide the NHC staff with an update on the replacement of the cold-leg accumulator level transmitters used at-SQN. To ensure continued reliability.of the accumulator level transmitters, TVA is replacing the originally installed Barton Model 384 -i level transmitters with-the newer Barton Model 752 level transmitters.

Complete replacement of the transmitters is presently scheduled to be completed during each unit's Cycle 4 refueling outage as part of a planned upgrade.

0 k 09D 9005090306 900504 PDR P

ADOCK 05000327 PDC I(

i An Equal Opportunity Empioyerr

e _q

-, s U.S. Nuclear Regulatory Commission

-MAY 041990 Please direct. questions concerning this-Issue to Bruce S.-Schofield at-(615) 843-6172.

Very truly yours, TENNESSEE VALLEY AUTHORITY 4-k/b a>} ,

) >M.-J. ay, Manager y Licensing Project. Management Sworn to'and subscribed before me  !

this' @ day of /h; 1990:

a.,& b. '\

PTotary Public My Commission. Expires ///4[94 Enclosures cc: American Nuclear Insurers (Enclosures)  ;

Attention: Librarian 1 The Exchange, Suite 245 1 .!

270 Farmington Avenue 1 Farmington, Connecticut 06032 j i

Ms. S. C. Black, Assistant Director (Enclosures) M for Projects .  :

TVA Projects Division i U.S. Nuclear Regulatory Commission 'l One White Flint, North  ?

11555 Rockville Pike  ;

Rockville, Maryland '20852 .

Mr. Michael H. Mobley, Director j Division of Radiologic il Health jl T.E.R.R.A. Building 150 9th Avento, N i" Nashville, Tennessee 37203 NRC Resident Inspector (Enclosures)

Sequoyah Nuclear Plant 2600 Igou Ferry. Road Soddy Daisy, Tennessee 37379 .

Mr. B. A. Wilson, Assistant Director (Enclosures) for Inspection' Programs TVA Projects Olvision U.S. Nuclear Regulatory Cowlssion j Region II 101 Marietta Street, NH, Suite 2900 Atlanta, Georgia 30323